3f69d5860f
Issue a read to confirm the register write before ringing doorbell. With multiple XCCs there is chance for race condition. Signed-off-by: Lijo Lazar <lijo.lazar@amd.com> Acked-by: Hawking Zhang <Hawking.Zhang@amd.com> Reviewed-by: Asad Kamal <asad.kamal@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>